|73 Magazine (December 2002)|
73 Magazine December 2002 (#505) Commercial-Quality Function Generator - Will you outlive it -or vice versa? ...... K8IHO 10 Shedding Some Light on Dimmers - Why not put one of these triacs to use? ...... W2GOM/7 22 Eager for Meager - Try an 11m vertical on 160 ...... AD1B 24 Shack Switch for Foot Fetishists - Not that it's That kinky ...... WA2OKZ 27 Ashore at Sacrifice Rock! - The saga of a masterful DXpedition ........
Keywords: radio; frequency; amateur; antenna; mhz; ihe; thai; cap; december; amateur radio; radio today; web site; time base; radio book; book shop; ham radio; power supply; cal res; three boats
Downloads: 10,436 (1 review)
|73 Magazine (December 1999)|
73 Magazine December 1999 (#470) The X(Mas)-Files ...... Staff 6 Big-Time Bench Supply - This highly regulated SCR design might be overkill, but it's still fun to build ...... Sellen 10 Secret Death Ray - Or is HAARP a useful science tool? ...... N7MGT 14 TV Tutor - How to get started in SSTV ...... ZL1AAN 22 Why Not Renew On-line? - Here's how to untangle the FCC Web ...... AC3L 24 Read All About It! - Part 1 of Techno-Trivia from The Hertzian Herald ........
Keywords: radio; amateur; antenna; mfj; voltage; ham; mhz; power; frequency; amateur radio; radio today; mfj mfj; ham radio; power supply; morse code; heavy duty; web site; digital port; transmission lines
|73 Magazine (May 1982)|
73 Magazine May 1982 (#260) Pacific Odyssey - the Kingman/Palmyra adventure ...... KB7NW 12 Top-Notch for Top Band - super antennas for 160 ...... N3BEK 26 The Fun-Amp - 20 Watts out ...... WA0RBR 32 The CCD Antenna Revisited - does it measure up on 40m? ...... W4ANL 40 Antenna-Raising: The Good-Neighbor Policy - sidestepping civil war ...... AK5Q/4 42 'Lite Receiver IV - part I: building it is a breeze ........
Keywords: antenna; amateur; mhz; radio; magazine; tor; power; frequency; pth; amateur radio; power supply; toll free; radio club; money order; weather satellite; call toll; residents add
Downloads: 6,874 (2 reviews)
|73 Magazine (October 1979)|
73 Magazine October 1979 (#229) Extremely Low Frequency Radiation: Cause for Worry? - studies on ELF are inconclusive, but the battle is joined ...... WB2NEL 34 An LED Display for the HW-2036 - eliminates unwieldy thumbwheel switches ...... WA4BZP 36 It's a Wattmeter... It's an Swr Bridge.. It's Swattmeter! - a super home-brew project ...... K4LBY 42 The Double-Sawbuck QRM Annihilator - 3-IC circuit yields perfect CW ........
Keywords: mhz; frequency; antenna; output; power; radio; amateur; audio; meter; amateur radio; power supply; ham radio; versa tuner; toll free; front panel; terminal strip; extra class; circuit board; radio rebelde
|73 Magazine (April 1982)|
73 Magazine April 1982 (#259) Watching the Weather - a cheap and easy conversion ...... KA9GDL 10 The Sinkhole That Ate Winter Park - hams vs. hole ...... KA4RUL 18 Operation Skywarn - tracking tornadoes with two meters ...... WB5ZAM 24 Measure Ohms with Your Calculator? - yes, and accurately, too! ...... Johnson 28 Scanning with the IC-280 ...... N7AAD 36 Detect Killer Tornadoes - use an ordinary TV set ........
Keywords: amateur; mhz; antenna; radio; power; kit; frequency; magazine; model; amateur radio; power supply; toll free; ham radio; dual trace; call toll; weather satellite; residents add; morse code; money order
|73 Magazine (September 1982)|
73 Magazine September 1982 (#264) Micro Modem - a RTTY TU designed for computers ...... WA4CKQ 10 F1 for the Hot Water 101 -all the way with FSK! ...... K0JH 20 No-Frills RTTY - $2OO and you're on the air ...... WA4STO 24 Incredibly Simple RTTY - receive it on your TRS-40 ...... WQXI 28 The RTTY/Tri-bander Marriage - enjoy the 100% duty cycle ...... K0ARC 32 Confessions of a Counter Evolutionary - part II ........
Keywords: output; antenna; mhz; rtty; amateur; input; frequency; radio; magazine; power; amateur radio; power supply; toll free; flea market; gmt september; weather satellite; radio club; ham radio; residents add; qso party
|73 Magazine (December 1976)|
73 Magazine December 1976 (#194) Go Tone for Ten - simple subaudible encoder ...... WB6GON 22 World's Simplest Five-Band Receiver? - using an AM transistor radio ...... K3QKO 28 How Do You Use ICs? - part IV ...... WA2SUT/NNN0ZVB 36 Hamming 101 - another Cabrillo College pioneering program ...... Inman 40 A Super Cheapo CW IDer - for FM repeaters and RTTY ...... K4EEU 46 The ZF Special Antenna - double-D "beam" ........
Keywords: mhz; frequency; power; radio; amateur; antenna; output; kit; meter; circuit; amateur radio; power supply; front panel; radio officer; factory wired; residents add; ham radio; circuit board; toll free; radio amateur
|73 Magazine (December 1997)|
73 Magazine December 1997 (#447) Distributed Capacity Folded Loop - This ceiling-mount antenna will really go to your head! ...... W6NBC 10 How to Silverplate RF Tank Circuits - A simple and inexpensive process to reduce losses ...... WB2CQM 18 Build Your First Kit! - Just follow one hams simple advice ...... N0BLX 24 Limited Space Antenna - Short of real estate? This might help! ...... HL9BK/K2KSY 27 How to Build A Great Ham Club - Good advice from the PR master ........
Keywords: amateur; radio; antenna; loop; ihe; ham; circuit; solder; kit; amateur radio; radio today; special event; ham radio; web site; power supply; ground plane; copper pipe
|73 Magazine (May 1979)|
73 Magazine May 1979 (#224) CB to 10 - part XVIII: several PLL rigs ...... K9PS 30 PROM IDer for Longer Callsigns - don't be caught short ...... W4VGZ 34 The W7GAQ Key Collection - 250 museum masterpieces ...... K7NZA 38 Proper FM Transceiver Adjustment - good club project ...... VE3AVY 44 Dual-Band Smokey Detector - Super Scooper does it all ...... W1SNN 48 The DXer's Secret Weapon - costs you nothing ........
Keywords: mhz; amateur; radio; kit; frequency; antenna; repeater; power; model; amateur radio; radio club; toll free; power supply; ham radio; call toll; front panel; versa tuner; annual hamfest
|73 Magazine (December 1977)|
73 Magazine December 1977 (#207) Inside Ten-Tec - QRP innovators ...... K4MDK 34 The History of Ham Radio - part V ...... W9CI 38 Try BCB DX! - when you're tired of twenty ...... WB2BJH 42 Build An Engine Analyzer - use your scope! ...... WA6THG/KH6 46 More Repeater Control Devices - control unit/audio interface ...... W7JSW 50 How Do You Use ICs? - part VIII ...... WA2SUT/NNN0ZVB 56 Finally! A Practical Discriminator! - metering system, that is ........
Keywords: mhz; frequency; amateur; kit; circuit; power; radio; output; antenna; meter; power supply; amateur radio; tufts radio; mystic avenue; radio electronics; aug aug; jan jan; ham radio; dec dec; front panel
|73 Magazine (August 1982)|
73 Magazine August 1982 (#263) Poor Man's Spectrum Analyzer - another 73 breakthrough ...... WB5IPM 10 The AC4YN Story - a Tibetan adventure, circa 1936-1937 ...... G5YN 32 "Smart" Squelch for SSB ...... W9MKV, W9YAN 44 The Ultimate Fuse - ac overload protection ...... W2OLU 52 Multi-Purpose Peak Adapter - don't settle for being average ...... K9EUI 54 The $100 TVRO Receiver - Satellite Central, part VIII ........
Keywords: mhz; frequency; amateur; antenna; output; power; radio; voltage; input; meter; amateur radio; power supply; toll free; circuit board; log amplifier; spectrum analyzer; radio club; dual trace; money order
|73 Magazine (April 1977)|
73 Magazine April 1977 (#199) Shoot the Moon! ...... K3BPP 44 Frustrating The Thieves ...... WB0GGT 46 Automatic Autopatch Release ...... WA1RTD 52 Emergency 911 System ...... WA2RXQ 54 The Downspout Vertical ...... K8ANG 55 RTTY? What's That? ...... WA6CPP/WA7PEI 56 Do-It-Yourself Photosensitizing ...... KL7AE 57 Making Your Own PC Boards -Part II ...... Smith 58 Curing Mobile Noise Miseries ........
Keywords: amateur; radio; mhz; kit; antenna; power; meter; frequency; circuit; repeater; circuit board; amateur radio; power supply; barrel kit; front panel; qso party; radio club; ham radio; master charge; kit includes
Downloads: 4,946 (1 review)
|73 Magazine (December 2001)|
73 Magazine December 2001 (#493) Microwind to the Rescue! - Let the wind keep your emergency batteries charged ...... WA8YKN 10 Subdivision Subterfuge - A Houston homeowner handles his hamming ...... KD5IDU 17 IOTA -AS096 - That's St. Mary's Island to you ...... VU2SBJ 20 Bare Bones Battery Booster - A good project - as long as you understand the dangers and limitations ...... N0GJ 23 VOM Primer - This overview is helpful for beginners and old-timers alike ........
Keywords: radio; amateur; antenna; ham; photo; december; meter; hams; tion; amateur radio; stepper motor; radio today; ham radio; web site; power supply; fly rod; circuit board; microwind generator; radio shack
|73 Magazine (July 1980)|
73 Magazine July 1980 (#238) The Rites of Spring - Dayton does it again ...... N1AUI, WB8BTH, KA1HY 30 One Step at a Time: Designing Your Own Ham Gear - part II ...... W4RNL 36 Top-Banding the DX-60B - put a classic rig on a classic band ...... WB1ASL 44 Forward into the Past! - a solid-state restoration project for a vintage BC receiver ...... W5JJ 48 ADDSCAN - now you can be two places at once ........
Keywords: radio; amateur; mhz; frequency; power; ham; antenna; signal; magazine; amateur radio; power supply; radio club; flea market; ham radio; toll free; front panel; mode switch; signal enforcer; locked loop
|73 Magazine (July 1981)|
73 Magazine July 1981 (#250) Dayton Dilemma '81 - which new gear do you buy? ...... KA1LR 22 The Fun-Ceiver - easy-to-build companion to February's QRP Fun-Mitter ...... WA0RBR 32 Review: The Kenwood TS-130s - a good rig done better ...... KA1LR 38 Review: The NCG-15 SSB/CW Monoband Transceiver - moving tale of mobile hamming ...... KA1LR 42 The Incredible Shrinking Antenna - give your vertical a top hat ........
Keywords: radio; antenna; amateur; mhz; frequency; magazine; power; receiver; meter; amateur radio; power supply; toll free; front panel; radio club; ccd antenna; ham radio; radio shack; frequency range; call toll
|73 Magazine (March 1982)|
73 Magazine March 1982 (#258) The Porta-Peater The Instant Communicator - quick and easy does it ...... WA2BHB, AC2A, WA2UNN 12 Amateur Television's Stripper - a home-brew star ...... VE3CYC 20 Polishing Kenwood's R-1000 - a gem in the rough ...... K9EUI 34 Peaking and Tweaking Surplus CB Boards - the untold story ...... WB0NPN/8 38 OSCAR Pathfinder - a colorful way to track the satellites ...... WB6NQK 46 Which TVRO Antenna Is Best? - Satellite Central, Part IV ........
Keywords: antenna; amateur; mhz; frequency; radio; power; audio; khz; receiver; amateur radio; power supply; toll free; power output; residents add; hewlett packard; front panel; call toll; frequency range
|73 Magazine (December 1981)|
73 Magazine December 1981 (#255) Cold Comfort - an HT to the rescue at fifteen below ...... KA1D 12 Review: The Rex Bassett TLM-2 Mobile Mount - banish your fear of flying ...... KAlLR 18 Update Your CW Music Keyboard - play it again Sam ...... K5KL 20 Review: The Kenwood TR-7730 Transceiver - Let's get small ...... KA1LR 26 Joe Ham: The Consumer - do you fit the mold? ...... N6AVU 32 Bob Cooper: Profile of a Pioneer ........
Keywords: antenna; mhz; amateur; frequency; radio; power; magazine; signal; satellite; amateur radio; power supply; toll free; hewlett packard; packard packard; directional coupler; ham radio; front panel; packard hewlett; hewlett hewlett
|73 Magazine (January 1984)|
73 Magazine January 1984 (#280) Breakthrough in Boston: The Birth of Crosslinking - Wl1UKZ built this box. It's small and it works. The question is whether you're ready for it ...... W1UKZ 10 Grenada Log - With a body-bag rig and gas from a bike, a ham hustled home the news. Here's history happening ...... K1XR, N8RK 20 Instant Pane Relief - This is the only notch filter for windows we've ever seen...
Keywords: amateur; radio; antenna; mhz; tor; ihe; magazine; por; operator; amateur radio; power supply; radio operator; ham radio; toll free; radio club; radio amateur; tone generator; packet radio; operator license
|73 Magazine (June 1982)|
73 Magazine June 1982 (#261) Build This Digital Vfo - a microprocessor makes it simple ...... WA5VQK 12 Surviving the Unthinkable - part II : some practical ideas ...... AK0Q 30 A Split Personality for the KDK FM2015R ...... K0BV 40 Building for Beginners - happiness is a hot soldering iron ...... N1II 42 Coping with PC Boards - it's not easy to be virtuous ...... KC7M 48 'Lite Receiver IV - the second half ........
Keywords: mhz; amateur; radio; antenna; frequency; kit; magazine; receiver; ham; amateur radio; power supply; toll free; radio club; father dave; ham radio; frequency range; middle east; printed circuit; money order
|73 Magazine (March 1980)|
73 Magazine March 1980 (#234) Good-Bye to Autopatch Hassles - low-cost remedies to common problems ...... WB2LEI/4 30 Baudot-ASCII Converter Follow-Up - add a FIFO buffer for typing ease ...... VE4YD, VE4CM 34 CB to 10 - part XXII: more talk power for the TRC-11 ...... N4APN 38 The L With It - an alternative to the variable inductor ...... K4KI 40 Future Rig and Rigamarole - are you ready for faster-than-light propagation? ........
Keywords: amateur; radio; mhz; antenna; power; frequency; output; march; meter; amateur radio; power supply; ham radio; field day; toll free; front panel; master charge; trap vertical; radio shack
|73 Magazine (December 1983)|
73 Magazine December 1983 (#279) Code Practice: Have You Seen the Light? - This simple cpo is the best weekend project under the sun -or bulb ...... Davidson 10 Unlimited Guarantee for Power Supplies - Plan for the worst and you'll get the best, says KC0EW. He might be right ...... KC0EW 20 PC Boards in a Flash! - Make circuit boards without expensive equipment. All you need is a light and a fast switch hand ........
Keywords: antenna; amateur; mhz; radio; ham; output; tor; magazine; power; frequency; amateur radio; power supply; ham radio; front panel; antenna tuner; toll free; qsl cards; radio club; radio amateur; circuit board
|73 Magazine (December 1998)|
73 Magazine December 1998 (#459) Probing Auto Electronics - Help your neighbor identify his car's problem and be an electronic's hero! ...... W6WTU 10 Announcing the QRPeanut - Here's a compact QRP transmatch you can build for next to nothing ...... N5GZH 14 Keys to Better Operating - Yes, much of it is common sense ...... W6BNB 17 Electronic Bug Emulator - Put some personality back into your CW ........
Keywords: radio; ihe; amateur; frequency; antenna; ham; power; thai; circuit; amateur radio; radio today; ham radio; morse code; power supply; matching case; front panel; power meter
|73 Magazine (November 1982)|
73 Magazine November 1982 (#266) A Perfect "10" - Timer, counter, logic probe - 10 functions in all. That's the Multi-Board One and you can build it ...... WA2BHB 10 Remote Control Your IC-701 - Simpler than commercial controllers, this home-brew circuit nevertheless features push-button band changing and frequency selection scanning, and expanded coverage ...... N2GW 14 Automatic Beam Aimer - Here is the scoop on adding set-and-forget convenience to your rotator control...
Keywords: antenna; output; circuit; mhz; voltage; audio; frequency; magazine; power; power supply; amateur radio; toll free; front panel; circuit board; gmt november; printed circuit; frequency range; fox tango
|73 Magazine (April 1984)|
73 Magazine April 1984 (#283) Doing It At Dayton - This unofficial Hamvention handbook helps attendees and dreamers alike ...... WA4BPI 10 Me and My Stupid Old PMOS Converter - At last, there's an easy way to get -12V from a +5-V power supply. Who said "trial and error"? ...... WB1HKU/6 14 Watch That Signal! -Haul out your old oscilloscope and turn it into a signal monitor. The conversion is easy and the price is right ........
Keywords: radio; filter; amateur; frequency; antenna; mhz; output; ham; magazine; radio shack; amateur radio; power supply; flea market; radio club; toll free; terminal unit; front panel; frequency range; ttl output
|73 Magazine (December 1972)|
73 Magazine December 1972 (#147) AFSA IV SSTV Analyzer - Also works for RTTY ...... W0LMD 17 Single Conversion 2m FM - No 455 i-f needed - honest! ...... K1CLL 23 Miniature Tone Encoder - Fits inside the mike ...... WA9VGS 29 Tone Burst Decoder - For repeaters and such ...... W3JJU 33 Universal I-F Amplifier - Like for a 2m panoramic receiver ...... DJ1SK 38 Touch-Tone Connections - For repeaters ........
Keywords: amateur; frequency; mhz; radio; voltage; circuit; repeater; meter; output; tuning; amateur radio; third party; bias voltage; power supply; capacitance variation; slow scan; circuit board; clear cast; amateur extra; party traffic
|73 Magazine (December 1979)|
73 Magazine December 1979 (#231) New Product: Swan's Astro 150 SSB Transceiver ...... WB8BTH 32 Low-Cost Receiver for Satellite TV - this modular design uses readily available technology ...... N6TX 38 A Simple 2m/10m Crossband Repeater System - work the world with an HT! ...... K9EID 44 Audio Booster for Mil-Surplus Receivers - a must for headphone haters ...... McClellan 50 Working with FETs - part II : experiments with gain and supply voltage ........
Keywords: mhz; frequency; amateur; antenna; output; circuit; power; audio; radio; amateur radio; power supply; ground rod; ham radio; toll free; square wave; prices subject; printed circuit; master charge; call toll
|73 Magazine (December 1991)|
73 Magazine December 1991 (#375) The Simple TX TX - The perfect companion for the SupeRX receiver! ...... WA6IVC 10 Project INSPIRE: A Space Shuttle Experiment - Build a simple receiver to explore the wonders of the 60,000 meter band! ...... KG6EK 22 The QUAG-V - A high performance and wide bandwidth antenna for VHF and UHF ...... WB3AYW 36 Computerized Tuning for Ramsey Receiver Kits - It doesn't have to be expensive ........
Keywords: amateur; radio; mhz; antenna; frequency; ham; repeater; receiver; amateur radio; radio today; power supply; feedback card; ham radio; high speed; call call
|73 Magazine (October 1977)|
73 Magazine October 1977 (#205) Communicate On 10.25 GHz - with a simple transceiver ...... WA3ETD 26 Home Brew Tilt-Over - the water pipe special ...... W4MEA 30 Minimize Feedline Loss - UHF buffs, front end center! ...... W2STM 32 How About 6 FM? - it's easy with a modified HE-50 ...... W3KBM 34 W.A.S. -Easily! - catching the last few ...... W7FGD 38 Fool the Wire Wizard - a computer would have helped ........
Keywords: mhz; frequency; antenna; output; power; amateur; kit; meter; radio; circuit; amateur radio; tufts radio; power supply; mystic avenue; radio electronics; power output; barrel kit; circuit board; low power; master charge
|73 Magazine (March 1977)|
73 Magazine March 1977 (#198) Pitcairn Island ...... VR6TC 28 How Do You Use ICs? - Part VI ...... WA2SUT/NNN0ZVB 36 Low Voltage Power Supply ...... VE3CWY 38 QLF? Not With the Great Lakes Sideswiper! ...... W6VX 44 The Capacitor Comparator ...... WB4MYL 49 Logical Storage for Logic ...... Stanfield 50 CB Can Do Some Things Better ...... Norman 56 A New Breed of Voltage Regulators ...... WA7ABV 62 High-Quality Video Display ........
Keywords: amateur; radio; kit; output; repeater; fcc; mhz; ham; frequency; circuit; amateur radio; power supply; barrel kit; ham radio; remotely controlled; radio service; repeater operation; printed circuit; interim amateur; graph paper
|73 Magazine (June 1979)|
73 Magazine June 1979 (#225) Add Digital Display for $50 - 100-Hz accuracy ...... K4IQJ 28 High-Performance Receiver Add-Ons - aren't ICs wonderful? ...... W5DA 32 A Solution to the Home-Brew Housing Shortage - building a box for your next project ...... W0IHI 38 How Do You Use ICs? - part XI ...... WA2SUT/NNN0ZVB 42 Customize Your HT144B - some nifty mods ...... W2KGV 46 Ultra-Simple CMOS Logic Probe - a single IC does it all ........
Keywords: amateur; radio; mhz; power; frequency; antenna; circuit; electronics; kit; amateur radio; power supply; front panel; toll free; call toll; radio club; circuit board; printed circuit; ham radio
|73 Magazine (October 1992)|
73 Magazine October 1992 (#385) Packet on the Mac - Connect with the world without a TNC ...... KD6CMT 8 A 2 Meter FET Amplifier for Your Handheld - Build this simple, inexpensive amplifier ...... AA4AW 20 A New Look at Loop Antennas - Adding regeneration to ferrite-core and open-wire box loops ...... W2IMB 28 Baby Loopy - A half-wave, inductively-loaded loop ...... NH6XK 34 Noise Reduction Using Broadband Active Whip Antennas - Clear reception for the VLF/LF bands ........
Keywords: radio; amateur; antenna; mhz; ihe; packet; ham; power; meter; amateur radio; radio today; feedback card; packet radio; ham radio; power supply; circuit board; serial port
|73 Magazine (October 1969)|
73 Magazine October 1969 (#109) A Super-Gain Antenna for 40 Meters - Nine db on 40 meters might be called "super" ...... W4NVK 8 DX Corner - WTW reports and other DX jazz ...... K2AGZ 12 FET Chirper - Signal source for peaking converters for optimum signal/noise ...... K6QKL 20 The Inside Info on Alexander Graham - Or how the telephone really works ...... W2FEZ 24 Leaky Lines - Similar to "Grumbles," but by a licensed amateur, not a CB'er ........
Keywords: signal; frequency; modulation; amateur; arrl; radio; antenna; modulating; power; receiver; amateur radio; modulating signal; super gain; power supply; ham radio; field service; power level; modulation percentage; audio output; output signal
|73 Magazine (October 1982)|
73 Magazine October 1982 (#265) The Splattometer - visual overmod warning ...... W1BG 10 Digital Basics - part II ...... K4IPV 20 Dissertation Upon Roast Pig - the ultimate in surplus? ...... N6TO 28 Got an Apple? Want RTTY? - try this hard-core interface ...... WB6FBN/4 34 The Pleasures and Perils of Crankup Towers - don't lose your head! ...... K4TWJ 40 The Incredible Antenna Mark 2 - a complete HF allbander in a very small space ........
Keywords: antenna; output; amateur; mhz; power; magazine; radio; ham; por; power supply; amateur radio; toll free; ham radio; radio shack; radio amateur; qso party; power supplies; radio club
|73 Magazine (June 1995)|
73 Magazine June 1995 (#417) The N4UAU Super CW Station - This li'l gizmo does it all! ...... N4UAU 10 Collinear 5/8 - Wave Omni Antenna for 2 Meters - Commercial antenna performance at a home-brew price! ...... WD0O 18 Battery Monitor and Charge Controller - Check the voltage and keep the battery charged ...... K4GOK 32 An Inexpensive Morse Code Keyer - Build your own for under 10 bucks ...... N2YMW 36 Measuring the Antenna from the Shack - The half-wave length feedline and how to get it ........
Keywords: antenna; amateur; radio; mhz; ihe; meter; ham; tuner; power; frequency; amateur radio; radio today; ham radio; field day; antenna tuner; feedback card; power supply; morse code
|73 Magazine (August 1984)|
73 Magazine August 1984 (#287) Top-Notch Tuner Time - Can't get your signal out of the backyard? Build KC2NT's antenna matcher and hear what you've been missing ...... K2NT 8 Cheap Power Ploy - This rugged supply will give you more power than you ever dreamed possible. Have we gone too far this time? ...... K9QLL 10 Penn's Two-Tone Gadget - Clue one: We're talking about lab quality. Clue two: Get your junk box ........
Keywords: amateur; output; radio; ihe; mhz; frequency; antenna; tor; ttie; amateur radio; power supply; radio club; toll free; gmt august; selcal code; print print; arecibo observatory; prices subject; annual hamfest
|73 Magazine (December 1980)|
73 Magazine December 1980 (#243) Who Really Invented Radio? - the twisted tale of Nathan B. Stubblefield ...... WB2NEL 36 In Search of the Elusive SES - track solar activity with this simple VLF receiver ...... WA3UER 42 An Even Better IC Timer - better than what? ...... WA0PBQ 46 Direct Printing FAX - Part II: constructing the facsimile recorder ...... WB8DQT 52 A 600-MHz Universal Counter - you'll freq out over this one ........
Keywords: mhz; frequency; antenna; power; magazine; radio; output; amateur; amateur radio; audio; circuit board; radio shack; power supply; variable attenuator; toll free; ham radio; radio club; time base; front panel
|73 Magazine (December 1990)|
73 Magazine December 1990 (#363) Behold the BackPacket! - Go take a hike with packet radio ...... NW6H 9 Upgrade Your HD-4040 - KISS your Heath HD-4040 and keep AX.25 too! ...... N2BLI 19 The VOX Plus HT Accessory - Enjoy base station performance -with your HT! ...... WA2EBY 24 Pack Your Seabag, "Sparks" - Do you want to be a ship's Radio Officer? ...... N0MM 35 Audio Powered Tape Recorder Controller - Add convenience to your hamshack ......KE0UV 54 Ten-Tee's Hercules II Model 420 - Turn your ri...
Keywords: radio; amateur; antenna; ham; audio; mhz; frequency; ihe; power; amateur radio; radio today; ham profiles; power supply; ham radio; feedback card; profiles ham; tape recorder
|73 Magazine (December 1982)|
73 Magazine December 1982 (#267) The Hangman's 2-Meter Collinear - Make your tower do double duty. Drop this array from the top and get 6-dB gain ...... W1GV/4 10 Deep-Six Squelch Tails - Kerchunks take a dive with the addition of this audio delay ...... WA2NYE 14 Build Yourself A Paralyzed Beam - Go from east to west In less than a second with this 2-meter array. And put your rotator out to pasture ........
Keywords: antenna; mhz; frequency; amateur; power; radio; audio; receiver; rtty; magazine; power supply; amateur radio; toll free; front panel; ham radio; squelch tail; morse code; residents add
|73 Magazine (March 1979)|
73 Magazine March 1979 (#222) RAM Scan Your KDK - amazing flexibility for $30 ...... WB2JHN 26 The NCX-Match - build something useful ...... WA6NCX/l 32 The Memorizer Goes to MARS - expanded frequency coverage ...... KH6JMU 38 Build a Hybrid Capacity Meter - digital circuitry, analog display ...... WA4HUU 40 Power Plus! - a 20-Amp, adjustable, regulated dc supply ...... W6YUY 42 Reaching for the Top - why stop with the General ticket? ........
Keywords: frequency; mhz; power; output; diode; antenna; amateur; kit; radio; amateur radio; power supply; toll free; front panel; call toll; frequency counter; ham radio; master charge; time base
|73 Magazine (November 1977)|
73 Magazine November 1977 (#206) Build The Omni-OSCAR! - practical omnidirectional antenna ...... K2OVS 24 Get Set For OSCAR 8 - details on the new bird! ...... W3HUC 28 Build An OSCAR 2m Transverter - make QRP days a success! ...... W2GN 32 Predicting OSCAR Propagation - not always simple ...... G3IOR 34 Try OSCAR Mobile - the ultimate DX test! ...... W2GN 40 Tic Tac Touchtone - a new mentod! ........
Keywords: mhz; oscar; antenna; frequency; kit; power; satellite; meter; amateur; model; power supply; amateur radio; tufts radio; radio electronics; mystic avenue; barrel kit; frequency counter; low power; clock kit; baud rate
|73 Magazine (December 1978)|
73 Magazine December 1978 (#219) A DXer's Dream Vacation - try sunny Montserrat ...... WB6JPZ 30 Close Encounters - the eyes of Texans are upon them ...... K8NQN 36 The Schizophrenic Triangle - a split-personality radiator ...... WA4JTJ 44 From CW to Computers - a digital modulation primer ...... N6RY 48 A 28 Cent Touchtone Mod - something for (almost) nothing ...... W9CGI 56 Space Age Surplus - your own Saturn V? ........
Keywords: antenna; mhz; amateur; frequency; output; meter; radio; swr; circuit; amateur radio; power supply; ham radio; nov nov; toll free; sep sep; oct oct; feb feb; jan jan; jul jul
|73 Magazine (October 1984)|
73 Magazine October 1984 (#289) Find Fault with Your Coax - Is your cable really doing its job? Find out with this elegant detective method ...... K4IPV 10 The Aussie Parasol Beam - What has twelve corners, three bands, and uses 140 feet of wire? Hint: It's not a quad ...... W6TYH 20 The Incredible Broadband Bowtie - Truly designed for solid-state finals, this 75m antenna features 50 Ohms at the feed-and less than 1.5:l swr across the band ........
Keywords: antenna; amateur; radio; frequency; tion; rtty; ham; mhz; amateur radio; magazine; private patch; velocity factor; ham radio; smart patch; volunteer examiner; driven element; noise bridge; gmt october; radio club
|73 Magazine (January 1991)|
73 Magazine January 1991 (#364) High Precision Frequency Standard - Use your TV set as a laboratory standard ...... Johnson 9 Scrounger's Guide to Recycled Electronics - Discover a gold mine of inexpensive parts ...... W5FG 22 An HF/VHF/UHF Marker Generator - Get on frequency for less than $10 ...... K84ZGC 27 A Parallel Port I/O Board - Control your world! ...... VE6BGL 29 The Three-Terminal Regulator - Multiple uses in one package ........
Keywords: radio; amateur; antenna; mhz; frequency; ham; output; tor; amateur radio; radio today; ham radio; feedback card; power supply; center conductor; rose parade; radio club
|73 Magazine (May 1984)|
73 Magazine May 1984 (#284) From Base to Beams - Home-brew from the ground up - Here's how to build a tower and top it off with performance-proven antennas ...... W6TYH 10 A Little Gem for QRP - The T2FD antenna thinks it's a full-size rhombic. Feeding is believing ...... W8VFT 26 "The Tops of the Palm Trees" - 20,000 QSOs. Coral Sea. Banyandah ...... VK2BJL 28 How to Gain with PVC - This could be history's cheapest quad...
Keywords: antenna; amateur; radio; lprint; mhz; khz; ihe; ttie; ham; amateur radio; radio club; power supply; lprint lprint; toll free; ham radio; radio amateurs; prices subject; ham mastertapes; forces day
|73 Magazine (December 1985)|
73 Magazine December 1985 (#303) FM Your IC-730 - Put the icing on your ICOM-and discover why the 10m-FM craze is sweeping the nation! ...... N9DBX 18 Join the SWOT Team! - 2m FM is fun, but using a repeater won't challenge your skill. Turn the switch to SSB and find out what ham radio is really about! ...... KA3B 26 One-Chip Facsimile - We all talk about the weather; now you can see it on your Atari...
Keywords: antenna; radio; mhz; tor; power; amateur; ssb; amateurs; radio amateurs; signal; driven element; signal generator; power supply; ssb championship; amateur radio; ham radio; mobile unit; smart patch; power supplies
|73 Magazine (April 1994)|
73 Magazine April 1994 (#403) Motorcycle Mobile! - Take ham radio two-wheeling ...... KC6QJB 10 The 40 Meter Full-Wave Horizontal Loop - Take your signal to the treetops ...... NH6XK 14 The Big Kahuna - A 15' high, 160 meter Distributed Capacity Twisted Loop Antenna ...... WA6QBU 20 A Sensitive Bandspread SWL Receiver - Aaah, the nostalgic smell of dust burning off tubes! ...... XE2/KB6EPO 32 A 2 Meter Half-Kilowatt for $1 per Watt - Build this VHF amp using vacuum-tube technology! ........
Keywords: radio; antenna; amateur; mhz; power; meter; ham; ihe; antennas; amateur radio; radio today; ham radio; power supply; flea market; packet radio; feedback card; case set
|73 Magazine (December 1969)|
73 Magazine December 1969 (#111) Quick, Easy, Dependable Transistor Diode Checker - For those who like checkered diodes ...... W6ICC 6 Did Samuel Morse Really Invent the Telegraph? - Telegraph? What's that? ...... W2FEZ 10 Combination Dummy Load/Attenuator Network - Also doubles as a hot plate for your coffee warming ...... W2EEY 14 Tuned Filter Chokes - The Easy Way - Can your filter chokes carry a tune? ........
Keywords: circuit; frequency; amateur; output; crystal; power; meter; input; oscillator; mhz; amateur radio; power supply; vdc vdc; extra class; resonant circuit; crystal oscillator; test equipment; feedback network; power output; input signal
|73 Magazine (November 1984)|
73 Magazine November 1984 (#290) Color Computer SSTV: Part I - Turn your CoCo into a complete SSTV terminal How? First, build this high resolution display system ...... K6AEP, WB8DQT 10 Wrap Up TVI! - Can you endure another evening without transmitting? Use this simple cure to choke out television interference forever ...... KR7L 26 But I Know How To Solder! - Anyone can dribble hot metal over a joint, bit it takes an artist to really solder...
Keywords: amateur; mhz; radio; filter; antenna; frequency; display; magazine; circuit; amateur radio; power supply; front panel; radio shack; smart patch; gmt november; ham radio; radio club; toll free; radio amateurs
|73 Magazine (February 1982)|
73 Magazine February 1982 (#257) The Fun-Oscillator - a simple, goof-proof vfo for your QRP transmitter ...... WA0RBR 12 Build this Antennalyzer - you'll need a weekend ...... W1BG 16 Police Freqs for the TR-2400 - a sleepless night for the mod squad ...... N9AKX 26 Those Amazing Bobtails - the current-fed connection ...... W1XU 30 Shoot the Moon! - visual tracking for your EME array ...... W9CGI 34 CQ MARS de IC-2A - work new worlds ........
Keywords: antenna; mhz; frequency; amateur; radio; signal; receiver; ham; magazine; amateur radio; toll free; power supply; dummy load; call toll; morse code; residents add; gmt february; british isles; audio filter
|73 Magazine (January 1978)|
73 Magazine January 1978 (#208) The Go-first-Class Digital Tester - build this outstanding in-circuit logic monitor ...... W7BBX/4 24 The Unbeatable Base-Loaded Three-Element Rotary Vertical ...... W3KBM 22 Negative Numbers On A $9 Calculator ...... WB6IXT/7 32 Sideband Exposed! -the mysteries of SSB unveiled -why not understand it once and for all? ...... W2FEZ 34 IC Timer Review ...... W3HB 40 Forget Ohm's Law ........
Keywords: output; frequency; mhz; power; kit; circuit; amateur; radio; receiver; input; power supply; amateur radio; radio electronics; tufts radio; mystic avenue; radio service; power output; master charge; low power; circuit board